FAQ

A: Regular models provide 6-12 hours of heat retention and 12-24 hours of cold retention. The specific duration may vary slightly depending on the product model, capacity, and usage environment.

A: The core material is food-grade 304 or 316 stainless steel, which meets national food contact safety standards. It is odorless, does not leach harmful substances, and is safe and reliable.

A: All plastic cups are made of food-grade safe materials such as PP and Tritan, which have passed food contact plastic testing. They are high-temperature resistant, not easy to deform, and can be used with confidence.

A: First, clean the inner liner and outer surface with warm water and a small amount of neutral detergent, then rinse thoroughly with clean water repeatedly, and use it after drying.

A: Stainless steel thermos cups/bottles cannot be heated in a microwave oven. Most styles are not recommended to be cleaned in a dishwasher to avoid damaging the coating or seals; hand washing is recommended.

A: First, check if the lid gasket is properly installed, intact, or if the lid is tightly screwed. If the gasket is damaged, contact customer service for replacement; if the leakage persists, apply for after-sales inspection.

A: Pour an appropriate amount of white vinegar or citric acid to soak for 30 minutes, then clean with a soft brush, and finally rinse with clean water; special cup cleaners can also be used.

A: The capacity marking refers to the actual safe filling capacity (excluding the inner space of the lid). It is recommended to leave a 1-2cm gap when filling liquid to avoid overflow caused by thermal expansion and contraction.

A: It may be due to aging/deformation of the sealing gasket, damage to the inner vacuum layer, or frequent lid opening leading to temperature loss. It is recommended to check the condition of the gasket, avoid severe collisions, and contact after-sales maintenance if necessary.

A: We support bulk custom logos (processes such as screen printing and laser engraving). Custom colors are available for some regular styles. For specific customization requirements, minimum order quantity, and lead time, please consult customer service.

A: For stainless steel thermos cups/bottles, the maximum temperature of the liquid poured in is recommended not to exceed 100°C (boiling water). For plastic cups, it depends on the material—PP cups can withstand up to 110°C, while Tritan cups can withstand up to 109°C, please avoid pouring ultra-high temperature liquids.

A: It is not recommended to hold carbonated drinks for a long time, as the gas may increase the internal pressure and affect the sealing performance. Food-grade 304/316 stainless steel can hold acidic beverages (such as lemonade, fruit juice) for a short time, but it is recommended to clean and dry the cup in time after use to avoid long-term corrosion.

A: All our products (including plastic cups and the plastic parts of thermos cups) are BPA-free. They are produced in strict accordance with international food safety standards, ensuring no harmful chemical substances are released during use.

A: Avoid dropping, colliding or squeezing the thermos cup violently, as this may damage the vacuum layer. After use, clean and dry the cup and lid in time, and store it with the lid slightly loosened to keep the inner liner dry and prevent odor.

A: Yes, most of our thermos cups and plastic cups have child-friendly designs (such as leak-proof lids, easy-to-open buttons, and non-slip bottoms). The materials are safe and non-toxic, but children under 3 years old are recommended to use them under adult supervision.

A: We provide a 12-month warranty period for all thermos cups and (thermos bottles), and a 6-month warranty period for plastic cups. The warranty covers manufacturing defects (such as vacuum failure, abnormal leakage), excluding damage caused by improper use or man-made damage.

A: Most of our thermos cup lids are detachable. You can disassemble the gasket, inner cover and other components for thorough cleaning, which can effectively remove dirt and odor. Please refer to the product manual for specific disassembly methods.

A: Yes, we have a series of outdoor-specific thermos cups/bottles with excellent insulation performance and anti-fall design. The compact size and lightweight design make them easy to carry, and they can keep water warm or cold for a long time in outdoor environments.

A: If the plastic cup is deformed due to improper use of high-temperature liquids, it is not recommended to use it again, as the material structure may be damaged and harmful substances may be released. Please contact customer service for consultation on after-sales solutions.

A: Yes, all our products have passed international food contact safety certifications such as FDA (US) and LFGB (EU). You can contact customer service to obtain relevant certification documents if needed.